(;CA[shift_jis]FF[4]RU[Chinese]MU[1]MU[0]AP[SmartGo:3.1.4]SZ[19]GM[1]EV[AlphaGo selfplay]
RO[25]PB[AlphaGo]PW[AlphaGo]KM[7.5]RE[W+R]MULTIGOGM[0]
;B[pd];W[dc];B[dq];W[pp];B[de];W[ce];B[cf];W[cd];B[df]LB[dg:A]C[This version of AlphaGo seems to like this solid connection, while the Lee version played the kaketsugi at A. ]
;W[fc];B[cl]C[This extension that resembles the Chinese opening has a human taste to it, maybe showing that this version still has some remnants of human bias. ]
;W[nq];B[mp]C[This shoulder hit was popularized by the Master version of AlphaGo in its games against human pros on the internet. ]
;W[np]C[This opening is identical to game 4 of this self played set. ];B[qm]LB[ql:A]
[mp:B][mn:C]C[In game 4, Black played at A instead of 15. When compared with this game, the single line difference made some subtle changes to how the right side and LR corner were played, but I cannot say which might be better. In the Master internet series, AlphaGo liked to immediately follow the shoulder hit at B with a jump at C, which is the more intuitive move for a human player.]
;W[qc]LB[fc:A]C[AG invades at the 33 points, but also continues to play star points, so I guess that Ag feels ok playing with either side. With White's solid position at A, I would say that the upper side is low in value, and hesitate to invade in this case. ]
;B[qd];W[pc];B[nc];W[oc];B[od];W[nb];B[pj]LB[rc:A][mb:B][mc:C]C[In the UR corner, the main candidates for Black's next local move are A, B, or C. In this game the upper side is not as important as the right side or the LL quarter of the board, so it looks good for Black to play away for now. ]
(;W[gp]LB[nd:A]C[The idea of White cutting at A is sometimes an issue when Black plays away, but usually Black can handle the ensuing fight. In this board position, Black can even sac some stones on the upper side (see var). ]
;B[do]
(;W[dl]C[White 26 is a probe, but when Black reacts strongly it starts a wild fight. The normal move would have been an extension on the lower side (see var). ]
;B[dk]LB[cm:A]C[Black should answer White's attachment directly, and Black 27 is the strongest move. Pulling back at A, for instance, would have been weak. ]
;W[cm]C[White 28 is the only good shape move for White. ]
(;B[ck]C[Black simply connects. Cutting would just help White (see var). ];W[em]
;B[el];W[dm];B[fo]LB[gp:A]C[Black starts to attack by splitting the group off from White's stone at A. ]
(;W[hn]C[Itseems more natural for White to move out with the group on the left (see var). ]
(;B[fl]LB[go:A]C[Black 35 is the strongest move, and already Black is attempting to kill White on the left. Playing at A to capture one stone on the side would have been boring (see var). ]
;W[fm];B[gm];W[gn];B[fn];W[eq];B[ep];W[gl];B[hm];W[im];B[hl];W[gk];B[fk]LB[ik:A]
C[Black must play this bad shape to prevent a net at A. ];W[fj];B[ek];W[gj]LB[fl:A]
C[The sequence after Black 35 (A) was mostly forced, and White will not be able to save the 5 stones on the side. However, Black has bad shape on all sides and it will still be a tough fight. ]
;B[il]
(;W[ch]LB[di:A]C[White invades on the 3rd line instead of the natural looking move at A. The var will show why. ]
(;B[di]C[I was suprised that Black did not attach on top (see var). ];W[dh];B[ei]
;W[jl];B[ik];W[eh];B[fi];W[fg]
(;B[gg]C[Black does not have time to save the 3 stones in the UL corner, and offers to trade them for White's stones in the center (see var). ]
(;W[cq]C[Why did White play this annoying probe? Maybe because the common sense idea of simply capturing Black in the upper left is not good (see var). ]
;B[er];W[gi];B[fh];W[gh]
(;B[bm]C[Why is Black suddenly so timid? Maybe we need a var to try to figure this one out. ]
;W[bn];B[bl];W[cn];B[co];W[ff]
(;B[bo]LB[bg:A]C[Black 73 is a patient move that takes away White's potential squeeze and prepares to save 3 stones with the kosumi at A. If Black had played away, White would have a squeeze that completes the White territory in the UL corner (see var). ]
;W[jm];B[jk];W[hg];B[kk];W[fq];B[dr];W[jp]LB[dm:A][bg:B]C[The game has settled down temporarily, as White now has almost no aji with the group at A. White's group has only 3 liberties, while Black's side group has at least 5 and the center already has 6. Black can save 3 stones with a play at B. The rest of the game will be played in the center and the upper and lower sides. ]
;B[lm]LB[mq:A]C[81 is a big move that threatens Black A next.];W[bj]TR[df]C[White captures the marked 3 stones with this move. ]
;B[mc];W[mb];B[lc]LB[gf:A]C[While playing a seemingly quiet joseki move, Black is actually breaking the ladder to escape at A.]
;W[id];B[mq];W[ll]
(;B[ml]LB[kl:A]C[I would have pushed through at A with this move (see var). ];W[mm]
;B[lo]C[This strange looking move prepares a squeeze. ];W[ln];B[mn];W[km];B[nm]
;W[lm];B[no];W[nl];B[om];W[rp]LB[mj:A][ko:B]C[White defends the corner. moving out in the center at A, and living with B are miai. ]
;B[go]
(;W[ko]C[One might expect White to cover on the left, but White has more eyespace this way (see var).]
;B[ho];W[mj];B[gc];W[fd];B[ic];W[jd];B[jc];W[rd];B[re];W[rc]LB[rf:A]C[The endgame plays start, even while we are not sure of the status of White's group on the lower side. White sets up the clamp at A. ]
;B[mr];W[iq];B[eg];W[bg]
(;B[lh]C[Black cannot kill the LR corner (see var). ];W[kd];B[lb];W[or];B[ni];W[nj]
;B[oj]LB[kn:A]C[Black isolates the White group on the lower side. White has one eye at A, a potential eye on the lower side, and something that looks like it could be a potential eye in the center. ]
;W[rf]C[By far, this is the largest remaining move. ];B[qf];W[se];B[ge];W[gd];B[jr]
;W[lp];B[mo];W[io]
(;B[gf]C[Black is trying to set up a killing attack against the White group. The var shows why Black doesn't just go ahead and do it. ]
;W[fe];B[if]
(;W[ol]LB[pl:A][hf:B][ok:C][hp:D]C[White protects the weak group. If Black answers at A, White can play at B, and then will be alive with C or D. The var shows what happens if White omits this precaution. ]
;B[ig];W[hc];B[qe];W[pl];B[qo];W[qp];B[rg];W[kg];B[kh];W[jg];B[ih];W[jh]
(;B[ji]C[Covering at 149 leaves some potential for a ko, so the var shows a relatively simple endgame. ]
;W[ql];B[oo];W[lg];B[nr];W[pr];B[mh]LB[ii:A]C[Black 155 seems unreasonable, with the correct move being at A. It is a close game, but I assume that Black calculated that it was behind. ]
;W[ii];B[hi];W[hh];B[hf];W[hj];B[jf];W[ki];B[jj];W[kf];B[ij]C[This is a one step ko in the center. ]
;W[je];B[bf];W[ef];B[le];W[pm];B[hi];W[mg]TR[mp]LB[ke:A]C[The play here is interesting, in that White does not directly answer Black's threat to cut at A. White has ko threats against the marked Black group, and the ko is too dangerous for Black to cut at A. ]
;B[ng];W[ii];B[kq]TR[mn][lo][no]C[Black 175 takes away most of White's ko threats against the marked Black group. ]
;W[nf];B[ne];W[he];B[hi];W[me];B[of];W[ii];B[ci];W[bi];B[hi];W[oh];B[nh];W[ii];B[cc]
C[Black is running out of ko threats. ];W[ie];B[dd];W[cb];B[bc];W[bb]
(;B[dg]C[Black started a final semeai with 195. Black could have used two moves to live on the side, but was behind in territory (see var). ]
;W[an];B[dn];W[bd];B[af];W[md];B[nd];W[bh];B[bk];W[ak]TR[fh][ci]LB[am:A][ej:B]C[White is threatening to play at A and then B to capture the marked stones.]
(;B[ok]C[Black is losing the semeai (see var). ];W[lk]C[Black resigns. ])
(;B[ao];W[ag];B[ai];W[ed];B[cj];W[ee];B[aj];W[ae];B[al];W[ac];B[ak];W[be]C[White wins by one move. ]))
(;B[bd];W[dg];B[ac];W[rj]C[White is winning by a comfortable margin. ]))
(;B[ii];W[pm];B[oo];W[on]
(;B[nn]
(;W[hp]TR[gi]C[This is an example of Black capturing the marked White group unconditionally. White seems to have a small lead. ])
(;W[ql];B[ir];W[hr];B[po]))
(;B[po];W[ql];B[ir];W[hr];B[kq];W[kp];B[rm];W[rl];B[op];W[oq];B[pn];W[nn];B[ro]
;W[me])))
(;W[hf];B[ig];W[he];B[jn];W[in];B[hp];W[ol];B[ok];W[lk];B[nk];W[kj];B[ji];W[ki]
;B[jh]TR[if]C[If Black can play the two marked forcing moves, White's group dies with this sequence. ]))
(;B[jn];W[in];B[hp];W[lk];B[nk];W[mk];B[ok];W[kj];B[ji];W[ki];B[kh];W[jj];B[ij]
;W[ii];B[jh];W[hj]TR[ij][jk]C[Black's cordon was incomplete, and when Black tried to kill the White group, it ended in Black losing the marked stones. ]))
(;B[qq];W[pq];B[qp];W[qo];B[rq];W[ro];B[pr];W[or];B[qs];W[oo];B[rr];W[rm];B[rl]
;W[sm]C[While Black can scoop out the corner territory, the right side Black territory is reduced, and this is not bad for White. ]))
(;W[ho];B[jo];W[io];B[kp]LB[go:A][ho:B][hq:C]C[Black A for White B was a useful exchange for Black that created a weakness at C. ]))
(;B[kl];W[ln];B[mn];W[mm];B[km];W[mo];B[lo];W[nn];B[kn];W[kq]C[White gets some strength on the outside before living onthe lower side. Still, this is the natural looking way for Black to proceed. ]))
(;B[hg];W[ii];B[jm];W[in];B[kl];W[bo];B[cp];W[bj];B[bp];W[jg]LB[eg:A]C[White squeezes to reduce Black's territory by a few points and gains territory in the UL corner. If Black cuts at A, White will win the semeai. ]))
(;B[gf];W[eg];B[bm];W[bn];B[bl];W[ih];B[jm];W[in];B[kl];W[dr];B[fq];W[co];B[cr]
;W[cp];B[br];W[bj];B[cn];W[dn];B[en];W[cn];B[an];W[ao];B[am];W[ej];B[dj];W[bp];B[aq]
;W[fe]TR[fh][di]LB[cq:A][gf:B][ci:C]C[This var can be taken as an example of how that probe at A (White 62) might come into play. Black B is the strongest fighting move that Black would like to be able to play. Black cannot afford to lose the marked stones, and the semeai on the left is not easy. Finally, White can play at C to get a ko, and is capturing the 3 Black stones anyway, so this is bad for Black. ]))
(;W[gf];B[hg];W[fh];B[gi];W[fe];B[in];W[jm];B[io]LB[gf:A]C[Simply capturing 3 Black stones with White A allows Black to start a new fight on the lower side, which favors Black. ]))
(;B[ed];W[gb];B[fd];W[gd];B[ge];W[gf];B[hd];W[gc];B[fe];W[hf];B[he];W[jf];B[jd]
;W[mc];B[nd];W[md]LB[ed:A][gj:B]C[Moving out with A is an overplay for Black. Black with be in danger on all sides when White pulls out the stones at B later. ]))
(;B[dh];W[di];B[ci];W[bi];B[cj];W[cg];B[dg];W[bf];B[ei];W[jl];B[ik];W[jm];B[jk]
;W[kk];B[ji];W[kj];B[ih];W[fq];B[dr];W[ip]LB[bi:A][cj:B][bl:C][gg:D]C[In this var White simply sacs the whole area, but suprisingly enough, it looks ok for White. The exchange of White A for Black B was painful for Black, and White has some aji at C that might be combined with escaping at D to create a race to capture on the left. This is not immediately realistic, but could happen with an extra White stone in the area, and that's why I just call it aji. Meanwhile, White has a nice moyo on the lower side and Black's right side has been limited by White's position in the center. ]))
(;W[di];B[bi];W[bh];B[ch];W[ci];B[bj];W[cg];B[dh];W[dg];B[eh];W[bf];B[eg];W[bg]
;B[ei]LB[di:A][bi:B]C[White A is met with Black B, and White has no good continuation. The sequence shown here is very disappointing for White. ]))
(;B[go];W[ho];B[hp];W[ip];B[hq];W[iq];B[gr];W[hr];B[gq];W[fl];B[ek];W[gm]C[Black's profit on the side is limited, and this is good for White. ]))
(;W[gm];B[fl];W[fm];B[go];W[ip];B[io];W[jp];B[jo];W[kp];B[hk];W[im];B[ko]LB[gm:A]
C[If White simply jumps at A, Black will continue with this splitting attack. The fight looks good for Black. ]))
(;B[dm];W[el];B[cn];W[ck];B[bm];W[dj]LB[dm:A]C[Cutting at A is bad, as it gives White a chance to make a trade. The ladder favors White, and this is just bad for Black. ]))
(;W[jp];B[mn]LB[mq:A]C[While trhis looks like the normal way for White to play, I would be happier holding the Black stones in this position. Black's immediate threat is to cover at A and split the two White groups on the lower side. ]))
(;W[nd];B[mc];W[mb];B[lc];W[ne];B[rc];W[rb];B[le];W[pf];B[re];W[qf];B[sb];W[ra]
;B[oe];W[of];B[nf];W[mf];B[ng];W[me];B[rf];W[lf];B[ph];W[lb];B[ge]LB[pj:A][ge:B]
C[This var shows Black making use of the supporting stone at A to fight strongly. The right side Black territory is big, and Black can afford to sac four stones on the upper side and still have an overall advantage. ]))